Kenechukwu A. Onubogu, I. Medina-Ramírez, S. Bashir, Zhiping Luo, J. Liu
{"title":"Colloidal Synthesis and Nanocharacterization of Engineered Noble Metal Nanoparticles","authors":"Kenechukwu A. Onubogu, I. Medina-Ramírez, S. Bashir, Zhiping Luo, J. Liu","doi":"10.1080/19430892.2011.574932","DOIUrl":null,"url":null,"abstract":"ABSTRACT Engineered noble (silver [Ag], gold [Au], and platinum [Pt]) metallic nanoparticles (ENPs) were prepared in gum arabic solutions using a facile, economical, and nontoxic synthetic route. Advanced instrumentation techniques (ultraviolet-visible spectroscopy, X-ray powder diffraction, high-resolution transmission electron microscopy equipped with X-ray energy dispersive spectroscopy, and dynamic light scattering) were applied to characterize the morphology, particle size distribution, elemental composition, and electrokinetics behavior of the ENPs. The analytical results of morphology and elemental composition suggest a size-controlled growth mechanism that yields monodispersed metallic particles (3.5–10.2 nm in diameter), indicating that the nanostructured products were highly crystalline and monodispersed. Zeta potential data confirmed that stable ENPs can be produced using a green chemistry approach. The ENPs displayed excellent stability as measured by zeta potential from −55 to −35 mV over a 2...","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"140 1","pages":"140-151"},"PeriodicalIF":0.0000,"publicationDate":"2011-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"9","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Green Nanotechnology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/19430892.2011.574932","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 9
Abstract
ABSTRACT Engineered noble (silver [Ag], gold [Au], and platinum [Pt]) metallic nanoparticles (ENPs) were prepared in gum arabic solutions using a facile, economical, and nontoxic synthetic route. Advanced instrumentation techniques (ultraviolet-visible spectroscopy, X-ray powder diffraction, high-resolution transmission electron microscopy equipped with X-ray energy dispersive spectroscopy, and dynamic light scattering) were applied to characterize the morphology, particle size distribution, elemental composition, and electrokinetics behavior of the ENPs. The analytical results of morphology and elemental composition suggest a size-controlled growth mechanism that yields monodispersed metallic particles (3.5–10.2 nm in diameter), indicating that the nanostructured products were highly crystalline and monodispersed. Zeta potential data confirmed that stable ENPs can be produced using a green chemistry approach. The ENPs displayed excellent stability as measured by zeta potential from −55 to −35 mV over a 2...